it isnt any more descriptive in fact its less descriptive and more specific its like me calling you a homosexual instead of a faggot faggot could mean you were a hipster sjw etc it could apply to a number of different situations but homosexual is fairly cut and dry in much the same way that developmentally disabled is a direct medical definition im sure this is a lot to take in even for a person of your stature sorry for talking over your head there pal